Application
Acetonitrile [(2-biphenyl)di-tert-butylphosphine]gold(I) hexafluoroantimonate serves as a versatile gold catalyst renowned for its role in facilitating diverse and complex chemical transformations. It is employed in the regio- and stereoselective synthesis of functionalized benzo[b]oxepines, enabling precise control in these reactions. This catalyst is also instrumental in the cyclization of o-(buta-1,3-diyn-1-yl)-substituted N-aryl ureas, as well as the cycloisomerization of 1,7-enyne esters, leading to the creation of structurally varied cis-tetrahydropyridin-4-yl ketones. Furthermore, its utility extends to the synthesis of coumarin-containing natural products and benzo[4,5]imidazo[1,2-a]quinazolinones, demonstrating its essential role in advancing modern synthetic organic chemistry.